MIDINFRARED (3-5 MU-M) LEDS AS SOURCES FOR GAS AND LIQUID SENSORS

Authors
MATVEEV BA GAVRILOV GA EVSTROPOV VV ZOTOVA NV KARANDASHOV SA SOTNIKOVA GY STUS NM TALALAKIN GN MALINEN J
Citation
Ba. Matveev et al., MIDINFRARED (3-5 MU-M) LEDS AS SOURCES FOR GAS AND LIQUID SENSORS, Sensors and actuators. B, Chemical, 39(1-3), 1997, pp. 339-343
Citations number
15
Categorie Soggetti
Electrochemistry,"Chemistry Analytical","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
39
Issue
1-3
Year of publication
1997
Pages
339 - 343
Database
ISI
SICI code
0925-4005(1997)39:1-3<339:M(MLAS>2.0.ZU;2-4
Abstract
Mid-infrared LEDs based on InGaAs, InAsSb(P) and InGaAsSb alloys with an emission band of 0.3-0.5 mu m, output power in the 10-50 mu W range and long-term operation up to 20 000 h have been fabricated and teste d. The LED-based analyser prototypes with PbSe photoresistors as detec ting elements have been made and characterized with respect to CO, CO2 and H2O detection. A first attempt to make a qualitative analysis of hydrocarbons at 3.3 mu m using transmission spectra recorded by an LED array spectrometer module has been undertaken.